Complex ion is shown by
$Ag$
$Au$
$Cu$
All of these
Which of the following is paramagnetic
All the following statements about the transitional elements are true except that
Effective magnetic moment of $S{c^{ + 3}}$ ion is
For the ions $Zn ^{2+}, \,Ni ^{2+}$ and $Cr ^{3+}$ which among the following statements is correct ?
(Atomic number of $Zn =30,\,Ni =28$ and $Cr =24$ )
The stability of $Cu ^{2+}$ is more than $Cu ^{+}$salts in aqueous solution due to -